The diagnosis of a vas praevium by amnioscopy.
D000328:Adult; D000653:Amniotic Fluid; D004724:Endoscopy; D005321:Extraembryonic Membranes; D005260:Female; D005313:Fetal Death; D006801:Humans; D008722:Methods; D007744:Obstetric Labor Complications / Q000175:diagnosis*; D011247:Pregnancy; D014470:Umbilical Cord / Q000098:blood supply*; D014599:Uterus